Abstract

We report the first demonstration to our knowledge of multipass amplification of soft x rays. A gain medium of neonlike selenium ions was placed within a resonant cavity composed of a multilayer mirror and a beam splitter designed for normal-incidence use at the 20.63- and 20.96-nm laser lines of the neonlike selenium. The laser-cavity output was time resolved and exhibited three distinct temporal components identifiable as the single-, double-, and triple-pass amplified emission. In these experiments, multipass amplification was limited by the finite duration of the gain medium.

© 1988 Optical Society of America

Time-resolved measurement of double-pass amplification of soft x rays

Natale M. Ceglio, David P. Gaines, James E. Trebes, Richard A. London, and Daniel G. Stearns
Appl. Opt. 27(24) 5022-5025 (1988)

Soft-x-ray amplification at 50.3 Å in nickellike ytterbium

B. J. MacGowan, S. Maxon, C. J. Keane, R. A. London, D. L. Matthews, and D. A. Whelan
J. Opt. Soc. Am. B 5(9) 1858-1863 (1988)

Proposal for soft-x-ray and XUV lasers in capillary discharges

J. J. Rocca, D. C. Beethe, and M. C. Marconi
Opt. Lett. 13(7) 565-567 (1988)

Beam properties of a deeply saturated, half-cavity zinc soft-x-ray laser

Tomáš Mocek, Bedřich Rus, Ansgar R. Präg, Michaela Kozlová, Gérard Jamelot, Antoine Carillon, and David Ros
J. Opt. Soc. Am. B 20(6) 1386-1391 (2003)

Observation of a plasma waveguide in a preformed plasma pumped by double-pulse laser irradiation for the efficient soft x-ray amplification

Tetsuya Kawachi, Noboru Hasegawa, Masaharu Nishikino, Yoshihiro Ochi, and Akira Sasaki
Opt. Lett. 34(5) 635-637 (2009)